This example demos accessing the Google Cloud Speech API via its REST API.
If you have not already done so, enable the Google Cloud Speech API for your project. You must be whitelisted to do this.
The example uses a service account for OAuth2 authentication. So next, set up to authenticate with the Speech API using your project's service account credentials.
Visit the Cloud Console, and navigate to:
API Manager > Credentials > Create credentials > Service account key > New service account.
Create a new service account, and download the json credentials file.
Then, set
the GOOGLE_APPLICATION_CREDENTIALS environment variable to point to your
downloaded service account credentials before running this example:
export GOOGLE_APPLICATION_CREDENTIALS=/path/to/your/credentials-key.json
If you do not do this, you will see an error that looks something like this when
you run the example script:
...<HttpError 403 when requesting https://speech.googleapis.com/v1/speech:recognize?alt=json returned "Request had insufficient authentication scopes.">.
See the
Cloud Platform Auth Guide
for more information.
$ python speechrest.py resources/audio.rawYou should see a response with the transcription result.